[IfcStructuralAnalysisModel.OrientationOf2DPlane property OrientationOf2DPlane public IfcAxis2Placement3D OrientationOf2DPlane { get; set; } 也可以看看 class IfcAxis2Placement3D class IfcStructuralAnalysisModel 命名空间 Aspose.CAD.FileFormats.Ifc.IFC4.Entities 部件 Aspose.CAD]
